dolphin/Source/Core/DolphinQt2/Config/LogWidget.cpp

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// Copyright 2017 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "DolphinQt2/Config/LogWidget.h"
#include <QCheckBox>
#include <QComboBox>
#include <QFont>
#include <QFontDatabase>
#include <QGroupBox>
#include <QPushButton>
#include <QScrollBar>
#include <QTextEdit>
#include <QTimer>
#include <QVBoxLayout>
#include "Common/FileUtil.h"
#include "Core/ConfigManager.h"
#include "DolphinQt2/Settings.h"
// Delay in ms between calls of UpdateLog()
constexpr int UPDATE_LOG_DELAY = 100;
// Maximum lines to process at a time
constexpr int MAX_LOG_LINES = 200;
// Timestamp length
constexpr int TIMESTAMP_LENGTH = 10;
LogWidget::LogWidget(QWidget* parent) : QDockWidget(parent), m_timer(new QTimer(this))
{
setWindowTitle(tr("Log"));
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setObjectName(QStringLiteral("log"));
setHidden(!Settings::Instance().IsLogVisible());
setAllowedAreas(Qt::AllDockWidgetAreas);
CreateWidgets();
LoadSettings();
ConnectWidgets();
connect(m_timer, &QTimer::timeout, this, &LogWidget::UpdateLog);
m_timer->start(UPDATE_LOG_DELAY);
connect(&Settings::Instance(), &Settings::DebugFontChanged, this, &LogWidget::UpdateFont);
LogManager::GetInstance()->RegisterListener(LogListener::LOG_WINDOW_LISTENER, this);
}
LogWidget::~LogWidget()
{
SaveSettings();
LogManager::GetInstance()->RegisterListener(LogListener::LOG_WINDOW_LISTENER, nullptr);
}
void LogWidget::UpdateLog()
{
std::lock_guard<std::mutex> lock(m_log_mutex);
if (m_log_queue.empty())
return;
auto* vscroll = m_log_text->verticalScrollBar();
auto* hscroll = m_log_text->horizontalScrollBar();
// If the vertical scrollbar is within 50 units of the maximum value, count it as being at the
// bottom
bool vscroll_bottom = vscroll->maximum() - vscroll->value() < 50;
int old_horizontal = hscroll->value();
int old_vertical = vscroll->value();
for (int i = 0; !m_log_queue.empty() && i < MAX_LOG_LINES; i++)
{
m_log_text->append(m_log_queue.front());
m_log_queue.pop();
}
if (hscroll->value() != old_horizontal)
hscroll->setValue(old_horizontal);
if (vscroll->value() != old_vertical)
{
if (vscroll_bottom)
vscroll->setValue(vscroll->maximum());
else
vscroll->setValue(old_vertical);
}
}
void LogWidget::UpdateFont()
{
QFont f;
switch (m_log_font->currentIndex())
{
case 0: // Default font
break;
case 1: // Monospace font
f = QFont(QStringLiteral("Monospace"));
f.setStyleHint(QFont::TypeWriter);
break;
case 2: // Debugger font
f = Settings::Instance().GetDebugFont();
break;
}
m_log_text->setFont(f);
}
void LogWidget::CreateWidgets()
{
// Log
m_tab_log = new QWidget;
m_log_text = new QTextEdit;
m_log_wrap = new QCheckBox(tr("Word Wrap"));
m_log_font = new QComboBox;
m_log_clear = new QPushButton(tr("Clear"));
m_log_font->addItems({tr("Default Font"), tr("Monospaced Font"), tr("Selected Font")});
auto* log_layout = new QGridLayout;
m_tab_log->setLayout(log_layout);
log_layout->addWidget(m_log_wrap, 0, 0);
log_layout->addWidget(m_log_font, 0, 1);
log_layout->addWidget(m_log_clear, 0, 2);
log_layout->addWidget(m_log_text, 1, 0, 1, -1);
QWidget* widget = new QWidget;
widget->setLayout(log_layout);
setWidget(widget);
m_log_text->setReadOnly(true);
QPalette palette = m_log_text->palette();
palette.setColor(QPalette::Base, Qt::black);
palette.setColor(QPalette::Text, Qt::white);
m_log_text->setPalette(palette);
}
void LogWidget::ConnectWidgets()
{
connect(m_log_clear, &QPushButton::clicked, m_log_text, &QTextEdit::clear);
connect(m_log_wrap, &QCheckBox::toggled, this, &LogWidget::SaveSettings);
connect(m_log_font, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
&LogWidget::SaveSettings);
connect(this, &QDockWidget::topLevelChanged, this, &LogWidget::SaveSettings);
connect(&Settings::Instance(), &Settings::LogVisibilityChanged, this,
[this](bool visible) { setHidden(!visible); });
}
void LogWidget::LoadSettings()
{
auto& settings = Settings::GetQSettings();
restoreGeometry(settings.value(QStringLiteral("logwidget/geometry")).toByteArray());
setFloating(settings.value(QStringLiteral("logwidget/floating")).toBool());
// Log - Wrap Lines
m_log_wrap->setChecked(settings.value(QStringLiteral("logging/wraplines")).toBool());
m_log_text->setLineWrapMode(m_log_wrap->isChecked() ? QTextEdit::WidgetWidth : QTextEdit::NoWrap);
// Log - Font Selection
// Currently "Debugger Font" is not supported as there is no Qt Debugger, defaulting to Monospace
m_log_font->setCurrentIndex(std::min(settings.value(QStringLiteral("logging/font")).toInt(), 1));
UpdateFont();
}
void LogWidget::SaveSettings()
{
auto& settings = Settings::GetQSettings();
settings.setValue(QStringLiteral("logwidget/geometry"), saveGeometry());
settings.setValue(QStringLiteral("logwidget/floating"), isFloating());
// Log - Wrap Lines
settings.setValue(QStringLiteral("logging/wraplines"), m_log_wrap->isChecked());
m_log_text->setLineWrapMode(m_log_wrap->isChecked() ? QTextEdit::WidgetWidth : QTextEdit::NoWrap);
// Log - Font Selection
settings.setValue(QStringLiteral("logging/font"), m_log_font->currentIndex());
UpdateFont();
}
void LogWidget::Log(LogTypes::LOG_LEVELS level, const char* text)
{
std::lock_guard<std::mutex> lock(m_log_mutex);
const char* color = "white";
switch (level)
{
case LogTypes::LOG_LEVELS::LERROR:
color = "red";
break;
case LogTypes::LOG_LEVELS::LWARNING:
color = "yellow";
break;
case LogTypes::LOG_LEVELS::LNOTICE:
color = "lime";
break;
case LogTypes::LOG_LEVELS::LINFO:
color = "cyan";
break;
case LogTypes::LOG_LEVELS::LDEBUG:
color = "lightgrey";
break;
}
m_log_queue.push(QStringLiteral("%1 <font color='%2'>%3</font>")
.arg(QString::fromStdString(std::string(text).substr(0, TIMESTAMP_LENGTH)),
QString::fromStdString(color),
QString::fromStdString(std::string(text).substr(TIMESTAMP_LENGTH))));
}
void LogWidget::closeEvent(QCloseEvent*)
{
Settings::Instance().SetLogVisible(false);
}